EP0289322A3 - Deflection circuit for nonstandard signal source - Google Patents

Deflection circuit for nonstandard signal source Download PDF

Info

Publication number
EP0289322A3
EP0289322A3 EP19880303871 EP88303871A EP0289322A3 EP 0289322 A3 EP0289322 A3 EP 0289322A3 EP 19880303871 EP19880303871 EP 19880303871 EP 88303871 A EP88303871 A EP 88303871A EP 0289322 A3 EP0289322 A3 EP 0289322A3
Authority
EP
European Patent Office
Prior art keywords
deflection circuit
signal source
deflection
signal sources
countdown
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19880303871
Other languages
German (de)
French (fr)
Other versions
EP0289322B1 (en
EP0289322A2 (en
Inventor
Mark Edward Modesitt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RCA Licensing Corp
Original Assignee
RCA Licensing Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by RCA Licensing Corp filed Critical RCA Licensing Corp
Publication of EP0289322A2 publication Critical patent/EP0289322A2/en
Publication of EP0289322A3 publication Critical patent/EP0289322A3/en
Application granted granted Critical
Publication of EP0289322B1 publication Critical patent/EP0289322B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/04—Synchronising
    • H04N5/12—Devices in which the synchronising signals are only operative if a phase difference occurs between synchronising and synchronised scanning devices, e.g. flywheel synchronising

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Scanning (AREA)
  • Synchronizing For Television (AREA)

Abstract

A deflection circuit for a video apparatus operates in a countdown mode in which synchronization of the vertical deflection circuitry is accomplished in precise relationship to the horizontal deflection frequency. In order to permit countdown operation for nonstandard but stable signal sources, such as video games, the countdown mode acceptance window is determined in a manner to encompass the coincidence of vertical sync pulses from signal sources having horizontal line per field ratios that may differ from the broadcast standard.
EP88303871A 1987-04-30 1988-04-28 Deflection circuit for nonstandard signal source Expired - Lifetime EP0289322B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/044,527 US4868659A (en) 1987-04-30 1987-04-30 Deflection circuit for non-standard signal source
US44527 1987-04-30

Publications (3)

Publication Number Publication Date
EP0289322A2 EP0289322A2 (en) 1988-11-02
EP0289322A3 true EP0289322A3 (en) 1991-07-17
EP0289322B1 EP0289322B1 (en) 1994-12-21

Family

ID=21932887

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88303871A Expired - Lifetime EP0289322B1 (en) 1987-04-30 1988-04-28 Deflection circuit for nonstandard signal source

Country Status (9)

Country Link
US (1) US4868659A (en)
EP (1) EP0289322B1 (en)
JP (1) JP2963459B2 (en)
KR (1) KR0137037B1 (en)
CN (1) CN1012780B (en)
CA (1) CA1286026C (en)
DE (1) DE3852515T2 (en)
ES (1) ES2065335T3 (en)
FI (1) FI88662C (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2801611B2 (en) * 1988-09-29 1998-09-21 株式会社東芝 Vertical synchronization circuit
JP2805859B2 (en) * 1989-07-06 1998-09-30 キヤノン株式会社 Still image playback device
JPH04243379A (en) * 1991-01-17 1992-08-31 Matsushita Electric Ind Co Ltd Pll circuit
JP3203680B2 (en) * 1991-05-28 2001-08-27 ソニー株式会社 Vertical synchronization processing circuit
GB9118425D0 (en) * 1991-08-28 1991-10-16 Rca Thomson Licensing Corp Adapting horizontal scan to picture format
GB2268656B (en) * 1992-07-03 1995-10-18 British Broadcasting Corp Synchronising signal separator
US5502502A (en) * 1995-03-06 1996-03-26 Honeywell Inc. PLL-based method and apparatus for generating video drive signals from various sync formats
JP3814811B2 (en) * 1996-10-02 2006-08-30 ソニー株式会社 Playback apparatus and playback method
EP0936807A4 (en) * 1997-08-29 2007-05-02 Matsushita Electric Ind Co Ltd Synchronizing signal generator
KR100747499B1 (en) 2005-07-26 2007-08-08 삼성전자주식회사 Video processing apparatus and video processing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063288A (en) * 1976-06-09 1977-12-13 Gte Sylvania Incorporated Vertical synchronizing circuit
US4228461A (en) * 1979-05-25 1980-10-14 Zenith Radio Corporation Vertical synchronization system
EP0069863A1 (en) * 1981-07-11 1983-01-19 Deutsche Thomson-Brandt GmbH Circuit arrangement for generating a control signal for the vertical-output stage in a television receiver
FR2535562A1 (en) * 1982-10-27 1984-05-04 Radiotechnique METHOD AND CIRCUIT FOR GENERATING A FRAME SYNCHRONIZATION SIGNAL IN AN IMAGE RECEIVER

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688037A (en) * 1970-09-30 1972-08-29 Rca Corp Synchronizing system
US3751588A (en) * 1972-06-02 1973-08-07 Gte Sylvania Inc Vertical synchronizing circuitry
US3916102A (en) * 1972-08-22 1975-10-28 Zenith Radio Corp Synchronous/asynchronous phase lock circuit for a digital vertical sync system
NL163694C (en) * 1972-11-24 1980-09-15 Philips Nv Circuitry for generating a control signal for the raster output stage in a television receiver and a television receiver thereof.
US3878336A (en) * 1973-10-18 1975-04-15 Rca Corp Digital synchronizing system
US3899635A (en) * 1974-01-30 1975-08-12 Rca Corp Dual mode deflection synchronizing system
US4025951A (en) * 1976-06-09 1977-05-24 Gte Sylvania Incorporated Vertical synchronizing circuit having adjustable sync pulse window
US4231064A (en) * 1978-05-18 1980-10-28 Victor Company Of Japan Ltd. Vertical synchronization circuit for a cathode-ray tube
US4298890A (en) * 1980-04-21 1981-11-03 Zenith Radio Corporation Digital vertical synchronization system for a television receiver
DE3110890C2 (en) * 1981-03-20 1983-04-14 Philips Patentverwaltung Gmbh, 2000 Hamburg Circuit arrangement for vertical deflection in a television set
JPS5811834A (en) * 1981-07-16 1983-01-22 Fujitsu Ltd Measuring device for solution concentration
JPS6147027A (en) * 1984-08-10 1986-03-07 松下電器産業株式会社 Cooperative push switch
US4605965A (en) * 1985-05-06 1986-08-12 Motorola, Inc. Universal vertical countdown and method for video display

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4063288A (en) * 1976-06-09 1977-12-13 Gte Sylvania Incorporated Vertical synchronizing circuit
US4228461A (en) * 1979-05-25 1980-10-14 Zenith Radio Corporation Vertical synchronization system
EP0069863A1 (en) * 1981-07-11 1983-01-19 Deutsche Thomson-Brandt GmbH Circuit arrangement for generating a control signal for the vertical-output stage in a television receiver
FR2535562A1 (en) * 1982-10-27 1984-05-04 Radiotechnique METHOD AND CIRCUIT FOR GENERATING A FRAME SYNCHRONIZATION SIGNAL IN AN IMAGE RECEIVER

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE TRANS. CONSUM. ELECTR., vol. CE-23, no. 3, August 1977, pages 311-325; S. COX et al.: "Digital vertical sync system" *

Also Published As

Publication number Publication date
KR0137037B1 (en) 1998-04-28
US4868659A (en) 1989-09-19
EP0289322B1 (en) 1994-12-21
FI88662B (en) 1993-02-26
KR880013368A (en) 1988-11-30
CN88102682A (en) 1988-11-09
FI881932A (en) 1988-10-31
JPS63286070A (en) 1988-11-22
EP0289322A2 (en) 1988-11-02
CN1012780B (en) 1991-06-05
DE3852515D1 (en) 1995-02-02
FI881932A0 (en) 1988-04-25
CA1286026C (en) 1991-07-09
DE3852515T2 (en) 1995-05-04
FI88662C (en) 1993-06-10
ES2065335T3 (en) 1995-02-16
JP2963459B2 (en) 1999-10-18

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